Mechanism for compressing and sheeting loose materials.



R. A. STUBBS.

MECHANISM FOR COMPRESSING AND SHEETING LOOSE MATERIALS.

APPLICATION FILED MAY 1. i915.

Patented Dec. 4:, 191?.

WI T/l/ESS ROBERT A. s'rUBns, or nannies, TEXAS, assrenon or rnann-rounrirs T0 e. w.

- GRISWOLD, or nnnnns, TEXAS.

MECHANISM FOR GOMPRESSING AND SHEETING LOOSE MATERIALS.

malaria.

Specification of Letters Patent.

Patented Dec. 4t, 1917..

Application filed May 1, 1915. Serial No. 25,176.

To all whom it may concern:

Be it known that I, ROBERT A. STUBBs, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Mechanisms for Compressing and Sheeting Loose Materials, of which the following is a specification.

My invention has relation to a mechanism for compressing and sheeting loose materials such as feed, grain, fiber or other materials and in such connection it relates more particularly to the construction and arrangement of the parts of the mechanism whereby the material after being compressed may be still further flattened and sheeted prior to its delivery from the mechanism.

In a companion application for patent filed of even date herewith and Serial N umber 25,174, I have described and claimed broadly a series of cooperating mechanisms and means constituting a shredding machine, by means of which machine, loose fibrous material such as feed, grain or the like may be fed to and through compacting means, and sheeting means and then trans versely cut and longitudinally split or cut by a shredding means. My present invention is confined to the compacting or compressing means cooperating with the sheeting or flattening means since as is well known such cooperating means may be used in the machine of Serial No. 25,174 or in similar machines or these cooperating means may under some circumstances constitute the entire machine as in the molding of plastic materials, bread or minor plastics and the like, wherein the flattened sheet of material is not to be further manipulated in the machine.

My invention stated in general terms comprises a means for compressing loose or relatively loose material and ameans coacting with the compressing means whereby the material may be further compressed and sheeted, without, however, increasing the transverse plane or width of the sheeted material.

My invention further consists in so arranging the compressing means and the sheeting means that upon the passage of relatively thick foreign substances or extraneous matter with the material through the two means, both means may temporarily and simultaneously adjust themselves to permitof the passage of the foreign substances, without altering their cooperative relationship.

The nature and scope of my invention will" be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof, in which,

Figure l, is an elevational view, partly sectioned, of the discharge end of the device embodying main features of my invention.

Fig. 2, is a side elevational view thereof.

Fig. 8, is a longitudinal sectional view taken on line a, (a, of Fig. 1.

Fig. 4, is a transverse sectional view taken on line 1), Z), of Fig. 2, and.

Fig. 5, is a cross-sectional view taken on line 0, c, of Fig. 2.

Referring to the drawings 1, 1, represent the side frames of the machine, and 2, 2, the uprights or standards mounted on frames 1 and constituting the support for the shaft 3 of the upper compressing roll 4:. The shaft 8 ha its bearings in boxes 5 sliding up and down in the uprights 2 and maintained under tension of springs 6 controlled by the tension screws 7. The shaft 8 of lower roller 9 has fixed hearings in the side frames 1. A belt 10 partly incloses the roller 9, the roller 9 being in fact the driving mechanism for the conveyer or belt 10.

Loosely supported on the shaft 3 outside voluted as at 15. Each bracket arm 11 is connected with a transverse bar 16 by means of pins or rollers 17 extending from lugs 18 of bar 16 into and through the slots 12 of the bracket arms 11. The transverse bar 16 i arranged to slide upon the front face of uprights 2 and is maintained in proper position on said uprights 2 by means of spring 19 interposed between plate 14 and bar 16. A tension screw 20 serves to adjust the tension of the pring 19. The plate 14 forms the upper or movable jaw for a sheeting mechanism. The lower jaw 21 is fixed to. the frame 1 of the machine in cooperation relationship to the upper jaw 14 and the lower aw 21 has its upper face convoluted or fluted as at 22 to correspond com-- face or upper plementally with the fluted jaw 14. lVhile said jaw 21 is relatively fixed with respect to the frame'l it is pivotally supported below its delivery end upon a transverse rod 23. A slotted ear or exten sion 24 on each end of the jaw 21 is bolted by bolts 24 to the frame 1. By raising or lowering the ears 24 the jaw swings on the rod 23 and the face 22 of the jaw 2lm'ay 115 veyer 10 is passed, has its ends flanged as at 26 the flanges being inwardly beveled so as to confine the material passing between the rollers 9 and 4 against spreading transversely during the compression ofthe materials and the convoluted coacting faces of 3.0:

the sheeting jaws permit of the necessary expansion of the material when flattened without however increasing the distance measured on a horizontallyextended plane is passing through the eenter'of the flattened sheet. 1 a

The undulated or fluted jaws of the discharge make it possible for the material to be cut with the eutting'instrument approaching or cutting from any angle. It will be seen that if the cutter be brought against the material at right angles to the plane of the sheet of material the material is held firmly in place and cannot escapethe cutting instrument at any point, while if the instrument be used for cutting parallel to the plane of the material the undulation or corrugations hold the material in such way that the instrument is at no-time passing through the full thickness of the sheet material.

The under edges ofeach 'jaw 14 and 21 diverge more or less at the entrance end to the sheeting mechanism so that as the material passes through the jaws it is gradually flattened prior to the final flattening and corrugating of the material at the exit endof the jaws. Y

VVV hen a foreign substance such as a stone,

nails or similar obstruction passes with the material under the roller 4, said roller is forced upward, "while the upper jaw 14 is maintained in position by the movement forward of the arms 11 about the roller 18, the'arm 11 being constructed so as to hinge on-theshaft of the roller When the roller 4 is forced'upward'the arm 11 swings about 18 as a pivot and maintains the pressure on the jaw 14. lVhen'the foreign substance has passed under and from contact with roller 4 and between the jaws the roller is held in elevated position and'thesheet' of material ismomentarily withheld from passing from between the jaws.

Having thus described the nature and objects of'my invention, what I claim as new, and d'esire'to secureby Letters Patent, is,-

1. In a'device of the character described, a means for compressing relatively loose material and twosheeting jaws cooperating with said compressing means said. jaws having their eoacting faces at the exit end convoluted complementally whereby the material may be further compressed and sheetcd during its passage through said jaws without projec'tingthe material transversely beyond the sides of the compressing means and sheeting jaws.

2. In a device of the characterdescribed, an upper compacting roller, a shaft carrying the same, vertically adjustable bearings for the shaft, slotted bracket arms supported at one end by the'sh'aft, a plate, constituting an upper sheeting aw, carried by the other end of said bracket arms, and means carried by the bracket arms and by the jawwhereby angular displacement of the jaw with respect to the vertical movement of jaw and roller is prevented during an upward movement' of said jaw.

In testimony whereof I have signed my name to this specification.

ROBERT A. STUBBS.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents,

' Washington, D. C, 

